The MM-120-BTM Speaker Mount supports speakers from its bottom pannel, weighing up to 120 lb., and is fully adjustable in both pan and tilt aiming, plus comes with a telescoping wall arm to adjust the relative distance between the speaker and the wall. This mount is exceptionally easy to install and use with large format loudspeakers. They are safe and offer greater than a 5:1 design factor. This design accommodates speakers that offer four-hole mounting patterns on the back panel of the speaker.